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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: dc.h
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Created: 01/02/97
	6	// Id:
	7	// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11
	12	#ifndef __GTKDCH__
	13	#define __GTKDCH__
	14
	15	#ifdef __GNUG__
	16	#pragma interface
	17	#endif
	18
	19	#include "wx/defs.h"
	20	#include "wx/object.h"
	21	#include "wx/gdicmn.h"
	22	#include "wx/pen.h"
	23	#include "wx/brush.h"
	24	#include "wx/icon.h"
	25	#include "wx/font.h"
	26	#include "wx/gdicmn.h"
	27
	28	//-----------------------------------------------------------------------------
	29	// classes
	30	//-----------------------------------------------------------------------------
	31
	32	class wxDC;
	33
	34	//-----------------------------------------------------------------------------
	35	// constants
	36	//-----------------------------------------------------------------------------
	37
	38	#define MM_TEXT 0
	39	#define MM_ISOTROPIC 1
	40	#define MM_ANISOTROPIC 2
	41	#define MM_LOMETRIC 3
	42	#define MM_HIMETRIC 4
	43	#define MM_TWIPS 5
	44	#define MM_POINTS 6
	45	#define MM_METRIC 7
	46
	47	//-----------------------------------------------------------------------------
	48	// global variables
	49	//-----------------------------------------------------------------------------
	50
	51	extern int wxPageNumber;
	52
	53	//-----------------------------------------------------------------------------
	54	// wxDC
	55	//-----------------------------------------------------------------------------
	56
	57	class wxDC: public wxObject
	58	{
	59	DECLARE_ABSTRACT_CLASS(wxDC)
	60
	61	public:
	62
	63	wxDC(void);
	64	~wxDC(void);
	65
	66	void BeginDrawing(void) {};
	67	void EndDrawing(void) {};
	68
	69	virtual bool Ok(void) const { return m_ok; };
	70
	71	virtual void FloodFill( long x1, long y1, wxColour *col, int style=wxFLOOD_SURFACE ) = 0;
	72	virtual bool GetPixel( long x1, long y1, wxColour *col ) const = 0;
	73
	74	virtual void DrawLine( long x1, long y1, long x2, long y2 ) = 0;
	75	virtual void CrossHair( long x, long y ) = 0;
	76	virtual void DrawArc( long x1, long y1, long x2, long y2, double xc, double yc );
	77	virtual void DrawEllipticArc( long x, long y, long width, long height, double sa, double ea ) = 0;
	78	virtual void DrawPoint( long x, long y ) = 0;
	79	virtual void DrawPoint( wxPoint& point );
	80
	81	virtual void DrawLines( int n, wxPoint points[], long xoffset = 0, long yoffset = 0 ) = 0;
	82	virtual void DrawLines( wxList *points, long xoffset = 0, long yoffset = 0 );
	83	virtual void DrawPolygon( int n, wxPoint points[], long xoffset = 0, long yoffset = 0,
	84	int fillStyle=wxODDEVEN_RULE ) = 0;
	85	virtual void DrawPolygon( wxList *lines, long xoffset = 0, long yoffset = 0,
	86	int fillStyle=wxODDEVEN_RULE );
	87
	88	virtual void DrawRectangle( long x, long y, long width, long height ) = 0;
	89	virtual void DrawRoundedRectangle( long x, long y, long width, long height, double radius = 20.0 ) = 0;
	90	virtual void DrawEllipse( long x, long y, long width, long height ) = 0;
	91
	92	virtual void DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 );
	93	virtual void DrawSpline( wxList *points );
	94	virtual void DrawSpline( int n, wxPoint points[] );
	95
	96	virtual bool CanDrawBitmap(void) const = 0;
	97	virtual void DrawIcon( const wxIcon &icon, long x, long y, bool useMask=FALSE );
	98	void DrawBitmap( const wxBitmap &bmp, long x, long y, bool useMask=FALSE )
	99	{ DrawIcon( ((wxIcon)(&bmp)), x, y, useMask ); }
	100	virtual bool Blit( long xdest, long ydest, long width, long height,
	101	wxDC *source, long xsrc, long ysrc, int logical_func = wxCOPY, bool useMask=FALSE ) = 0;
	102
	103	virtual void DrawText( const wxString &text, long x, long y, bool use16 = FALSE ) = 0;
	104	virtual bool CanGetTextExtent(void) const = 0;
	105	virtual void GetTextExtent( const wxString &string, long width, long height,
	106	long descent = NULL, long externalLeading = NULL,
	107	wxFont *theFont = NULL, bool use16 = FALSE ) = 0;
	108	virtual long GetCharWidth(void) = 0;
	109	virtual long GetCharHeight(void) = 0;
	110
	111	virtual void Clear(void) = 0;
	112
	113	virtual void SetFont( const wxFont &font ) = 0;
	114	virtual wxFont *GetFont(void) { return &m_font; };
	115
	116	virtual void SetPen( const wxPen &pen ) = 0;
	117	virtual wxPen *GetPen(void) { return &m_pen; };
	118
	119	virtual void SetBrush( const wxBrush &brush ) = 0;
	120	virtual wxBrush *GetBrush(void) { return &m_brush; };
	121
	122	virtual void SetLogicalFunction( int function ) = 0;
	123	virtual int GetLogicalFunction(void) { return m_logicalFunction; };
	124
	125	virtual void SetTextForeground( const wxColour &col );
	126	virtual void SetTextBackground( const wxColour &col );
	127	virtual wxColour& GetTextBackground(void) const { return (wxColour&)m_textBackgroundColour; };
	128	virtual wxColour& GetTextForeground(void) const { return (wxColour&)m_textForegroundColour; };
	129
	130	virtual void SetBackgroundMode( int mode ) = 0;
	131	virtual int GetBackgroundMode(void) { return m_backgroundMode; };
	132
	133	virtual void SetPalette( const wxPalette& palette ) = 0;
	134	void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
	135
	136	// the first two must be overridden and called
	137	virtual void SetClippingRegion( long x, long y, long width, long height );
	138	virtual void DestroyClippingRegion(void);
	139	virtual void GetClippingBox( long x, long y, long width, long height ) const;
	140
	141	virtual inline long MinX(void) const { return m_minX; }
	142	virtual inline long MaxX(void) const { return m_maxX; }
	143	virtual inline long MinY(void) const { return m_minY; }
	144	virtual inline long MaxY(void) const { return m_maxY; }
	145
	146	virtual void GetSize( int* width, int* height ) const;
	147	inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
	148	virtual void GetSizeMM( long* width, long* height ) const;
	149
	150	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; };
	151	virtual void EndDoc(void) {};
	152	virtual void StartPage(void) {};
	153	virtual void EndPage(void) {};
	154
	155	virtual void SetMapMode( int mode );
	156	virtual int GetMapMode(void) const { return m_mappingMode; };
	157
	158	virtual void SetUserScale( double x, double y );
	159	virtual void GetUserScale( double x, double y );
	160	virtual void SetLogicalScale( double x, double y );
	161	virtual void GetLogicalScale( double x, double y );
	162
	163	virtual void SetLogicalOrigin( long x, long y );
	164	virtual void GetLogicalOrigin( long x, long y );
	165	virtual void SetDeviceOrigin( long x, long y );
	166	virtual void GetDeviceOrigin( long x, long y );
	167	virtual void SetInternalDeviceOrigin( long x, long y );
	168	virtual void GetInternalDeviceOrigin( long x, long y );
	169
	170	virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
	171
	172	virtual void SetOptimization( bool WXUNUSED(optimize) ) {};
	173	virtual bool GetOptimization(void) { return m_optimize; };
	174
	175	virtual long DeviceToLogicalX(long x) const;
	176	virtual long DeviceToLogicalY(long y) const;
	177	virtual long DeviceToLogicalXRel(long x) const;
	178	virtual long DeviceToLogicalYRel(long y) const;
	179	virtual long LogicalToDeviceX(long x) const;
	180	virtual long LogicalToDeviceY(long y) const;
	181	virtual long LogicalToDeviceXRel(long x) const;
	182	virtual long LogicalToDeviceYRel(long y) const;
	183
	184	public:
	185
	186	void CalcBoundingBox( long x, long y );
	187	void ComputeScaleAndOrigin(void);
	188
	189	long XDEV2LOG(long x) const
	190	{
	191	long new_x = x - m_deviceOriginX;
	192	if (new_x > 0)
	193	return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
	194	else
	195	return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
	196	}
	197	long XDEV2LOGREL(long x) const
	198	{
	199	if (x > 0)
	200	return (long)((double)(x) / m_scaleX + 0.5);
	201	else
	202	return (long)((double)(x) / m_scaleX - 0.5);
	203	}
	204	long YDEV2LOG(long y) const
	205	{
	206	long new_y = y - m_deviceOriginY;
	207	if (new_y > 0)
	208	return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
	209	else
	210	return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
	211	}
	212	long YDEV2LOGREL(long y) const
	213	{
	214	if (y > 0)
	215	return (long)((double)(y) / m_scaleY + 0.5);
	216	else
	217	return (long)((double)(y) / m_scaleY - 0.5);
	218	}
	219	long XLOG2DEV(long x) const
	220	{
	221	long new_x = x - m_logicalOriginX;
	222	if (new_x > 0)
	223	return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
	224	else
	225	return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
	226	}
	227	long XLOG2DEVREL(long x) const
	228	{
	229	if (x > 0)
	230	return (long)((double)(x) * m_scaleX + 0.5);
	231	else
	232	return (long)((double)(x) * m_scaleX - 0.5);
	233	}
	234	long YLOG2DEV(long y) const
	235	{
	236	long new_y = y - m_logicalOriginY;
	237	if (new_y > 0)
	238	return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
	239	else
	240	return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
	241	}
	242	long YLOG2DEVREL(long y) const
	243	{
	244	if (y > 0)
	245	return (long)((double)(y) * m_scaleY + 0.5);
	246	else
	247	return (long)((double)(y) * m_scaleY - 0.5);
	248	}
	249
	250	virtual void DrawOpenSpline( wxList *points ) = 0;
	251
	252	public:
	253
	254	bool m_ok;
	255	bool m_colour;
	256
	257	// not sure, what these mean
	258	bool m_clipping; // Is clipping on right now ?
	259	bool m_isInteractive; // Is GetPixel possible ?
	260	bool m_autoSetting; // wxMSW only ?
	261	bool m_dontDelete; // wxMSW only ?
	262	bool m_optimize; // wxMSW only ?
	263	wxString m_filename; // Not sure where this belongs.
	264
	265	wxPen m_pen;
	266	wxBrush m_brush;
	267	wxBrush m_backgroundBrush;
	268	wxColour m_textForegroundColour;
	269	wxColour m_textBackgroundColour;
	270	wxFont m_font;
	271
	272	int m_logicalFunction;
	273	int m_backgroundMode;
	274	int m_textAlignment; // gone in wxWin 2.0 ?
	275
	276	int m_mappingMode;
	277
	278	// not sure what for, but what is a mm on a screen you don't know the size of?
	279	double m_mm_to_pix_x,m_mm_to_pix_y;
	280
	281	long m_internalDeviceOriginX,m_internalDeviceOriginY; // If un-scrolled is non-zero or
	282	// d.o. changes with scrolling.
	283	// Set using SetInternalDeviceOrigin().
	284
	285	long m_externalDeviceOriginX,m_externalDeviceOriginY; // To be set by external classes
	286	// such as wxScrolledWindow
	287	// using SetDeviceOrigin()
	288
	289	long m_deviceOriginX,m_deviceOriginY; // Sum of the two above.
	290
	291	long m_logicalOriginX,m_logicalOriginY; // User defined.
	292
	293	double m_scaleX,m_scaleY;
	294	double m_logicalScaleX,m_logicalScaleY;
	295	double m_userScaleX,m_userScaleY;
	296	long m_signX,m_signY;
	297
	298	bool m_needComputeScaleX,m_needComputeScaleY; // not yet used
	299
	300	float m_scaleFactor; // wxPSDC wants to have this. Will disappear.
	301
	302	long m_clipX1,m_clipY1,m_clipX2,m_clipY2;
	303	long m_minX,m_maxX,m_minY,m_maxY;
	304	};
	305
	306	#endif // __GTKDCH__